vlc_flutter_player 7.4.4 throws PlatformException (PlatformException(channel-error, Unable to establish connection on channel., null, null)) on android

[alohadance98]

I have download vlc_flutter_player 7.4.4 and run example app but the vlc throws error PlatformException in example app

D/SurfaceComposerClient(30016): VRR [FRTC] client handle [bufferId:18446744073709551615 framenumber:0] [ffffffff, ffffffff]
E/flutter (30016): [ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null)
E/flutter (30016): #0      VlcPlayerApi.initialize (package:flutter_vlc_player_platform_interface/src/messages/messages.dart:632:7)
messages.dart:632
E/flutter (30016): <asynchronous suspension>
E/flutter (30016): 
I/Choreographer(30016): Skipped 643 frames!  The application may be doing too much work on its main thread.
I/Quality (30016): Skipped: false 643 cost 7149.087 refreshRate 0 processName software.solid.example
D/SurfaceComposerClient(30016): VRR [FRTC] client handle [bufferId:18446744073709551615 framenumber:0] [ffffffff, ffffffff]
I/OpenGLRenderer(30016): Davey! duration=7231ms; Flags=1, FrameTimelineVsyncId=1938030, IntendedVsync=582747303536465, Vsync=582754447980838, InputEventId=0, HandleInputStart=582754453193005, AnimationStart=582754453203370, PerformTraversalsStart=582754453212120, DrawStart=582754481826182, FrameDeadline=582747319758687, FrameInterval=582754452623214, FrameStartTime=11111111, SyncQueued=582754484829516, SyncStart=582754484969099, IssueDrawCommandsStart=582754485829984, SwapBuffers=582754530980557, FrameCompleted=582754535573682, DequeueBufferDuration=725000, QueueBufferDuration=1976875, GpuCompleted=582754535573682, SwapBuffersCompleted=582754534821078, DisplayPresentTime=504607341152, 
I/flutter (30016): [IMPORTANT:flutter/shell/platform/android/platform_view_android.cc(356)] Flutter recommends migrating plugins that create and register surface textures to the new surface producer API. See https://docs.flutter.dev/release/breaking-changes/android-surface-plugins
I/PlatformViewsController(30016): Hosting view in view hierarchy for platform view: 0
I/PlatformViewsController(30016): PlatformView is using SurfaceProducer backend
E/FrameEvents(30016): updateAcquireFence: Did not find frame.
I/Quality (30016): Skipped: false 8 cost 98.39921 refreshRate 0 processName software.solid.example
D/ProfileInstaller(30016): Installing profile for software.solid.example
E/FrameEvents(30016): updateAcquireFence: Did not find frame.

[FlawLessx]

did you find solution?

[alohadance98]

did you find solution?

I am still waiting for oganize response and hotfix version. I just know after update version of libvlc-all the PlatformException appears

[twix44]

this issue after the latest library update

Flutter 3.35.3
Platform: Android
flutter_vlc_player : 7.4.4

Error message:

P/Quality ( 2103): 07 02 block_gc block_gc otv. player 2103 10510984 1535 I/otv. playe( 2103): WaitForGcToComplete blocked ProfileSaver on HeapTrim for 531.164ms W/Looper ( 2103): Slow delivery took 3386ms main h=android.os.Handler c=io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0@28db91b m=0 W/Looper ( 2103): Drained E/flutter ( 2103): [ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null) E/flutter ( 2103): #0 VlcPlayerApi.initialize (package:flutter_vlc_player_platform_interface/src/messages/messages.dart:632:7) E/flutter ( 2103): <asynchronous suspension> E/flutter ( 2103): I/PlatformViewsController( 2103): Hosting view in view hierarchy for platform view: 0 I/PlatformViewsController( 2103): PlatformView is using SurfaceProducer backend D/otv. playe( 2103): DDpid=2103 tid=2160 name=com. . player W/Gralloc4( 2103): allocator 3.x is not supported W/Gralloc3( 2103): allocator 3.x is not supported E/FrameEvents( 2103): updateAcquireFence: Did not find frame. D/otv. playe( 2103): DDpid=2103 tid=2160 name=com. . player E/FrameEvents( 2103): updateAcquireFence: Did not find frame. E/flutter ( 2103): [ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: PlatformException(channel-error, Unable to establish connection on channel., null, null) E/flutter ( 2103): #0 VlcPlayerApi.create (package:flutter_vlc_player_platform_interface/src/messages/messages.dart:658:7) E/flutter ( 2103): <asynchronous suspension> E/flutter ( 2103): #1 VlcPlayerController.initialize (package:flutter_vlc_player/src/vlc_player_controller.dart:191:5) E/flutter ( 2103): <asynchronous suspension> E/flutter ( 2103): #2 VlcPlayerController.onPlatformViewCreated (package:flutter_vlc_player/src/vlc_player_controller.dart:969:7) E/flutter ( 2103): <asynchronous suspension> E/flutter ( 2103): I/otv. playe( 2103): NativeAlloc concurrent copying GC freed 673065(25MB) AllocSpace objects, 0(0B) LOS objects, 49% free, 3076KB/6153KB, paused 134us total 171.812ms

[alohadance98]

UPDATE: there is a package flutter_vlc_player_16kb on pub.dev which already supports 16kb page size and runs smoothly, you can switch to it @FlawLessx @twix44

[FlawLessx]

Thanks for the suggestion @alohadance98 , but now im migrating to media_kit since it use libmpv that reduce app size too

[Zeus178]

UPDATE: there is a package flutter_vlc_player_16kb on pub.dev which already supports 16kb page size and runs smoothly, you can switch to it @FlawLessx @twix44

I tried flutter_vlc_player_16Kb but still encountered the same error. Do you have a solution yet?

[rochelryu]

Anyone have one solution on this bug ?

[rochelryu]

this is my error:
PlatformException(channel-error, Unable to establish connection on channel., null, null)
I/flutter ( 9282): ┌───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
I/flutter ( 9282): │ #0 main. (package:stream_ryu/main.dart:106:12)
I/flutter ( 9282): │ #1 _RootZone.runBinary (dart:async/zone.dart:1854:54)
I/flutter ( 9282): ├┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄┄
I/flutter ( 9282): │ ⛔ Stack trace: #0 VlcPlayerApi.create (package:flutter_vlc_player_platform_interface/src/messages/messages.dart:658:7)
I/flutter ( 9282): │ ⛔
I/flutter ( 9282): │ ⛔ #1 VlcPlayerController.initialize (package:flutter_vlc_player/src/vlc_player_controller.dart:191:5)
I/flutter ( 9282): │ ⛔
I/flutter ( 9282): │ ⛔ #2 VlcPlayerController.onPlatformViewCreated (package:flutter_vlc_player/src/vlc_player_controller.dart:969:7)
I/flutter ( 9282): │ ⛔
I/flutter ( 9282): │ ⛔
I/flutter ( 9282): └───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────
E/FrameEvents( 9282): updateAcquireFence: Did not find frame.
D/EGL_emulation( 9282): app_time_stats: avg=23094.62ms min=23094.62ms max=23094.62ms count=1

this is my code:
import 'package:flutter_vlc_player/flutter_vlc_player.dart';
import 'package:stream_ryu/core/utils/logger.dart';
import '../di/service_locator.dart';
import '../storage/secure_storage_local.dart';
import '../utils/channel_helper.dart';
import 'dart:async';

class VlcPlayerService {
VlcPlayerController? _controller;
bool _isAndroidTV = false;
Timer? _healthCheckTimer;
Timer? _reconnectTimer;
int _bufferHealthChecks = 0;
int _reconnectAttempts = 0;
static const int _maxReconnectAttempts = 3;
String? _lastUrl;
String? _lastReferer;
String? _lastOrigin;
final SecureStorage secureStorage = sl();
int? performance;

VlcPlayerController? get controller => _controller;

/// Détection rapide Android TV
void _initializeDeviceInfo(bool isAndroidTV) {
_isAndroidTV = isAndroidTV;
}

Future loadPerformance() async {
performance = await secureStorage.getPerformance();
}

/// Prépare le player avec stratégies optimisées
Future prepare({
required String url,
required bool isAndroidTV,
String? referer,
String? origin,
bool autoPlay = true,
}) async {
_initializeDeviceInfo(isAndroidTV);
await loadPerformance();

// Sauvegarde pour reconnexion
_lastUrl = url;
_lastReferer = referer;
_lastOrigin = origin;

// Nettoyage préventif
await _cleanupTimers();
_reconnectAttempts = 0;

final strategy = _isAndroidTV
    ? PlayerStrategy.androidTVStable
    : PlayerStrategy.iosBalanced;

return _prepareWithStrategy(url, referer, origin, autoPlay, strategy);

}

Future _prepareWithStrategy(
String url,
String? referer,
String? origin,
bool autoPlay,
PlayerStrategy strategy,
) async {
if (_controller != null) {
await _safeDispose();
}

try {
  final options = _buildOptionsForStrategy(strategy, referer, origin);

  _controller = VlcPlayerController.network(
    url,
    hwAcc: _getHwAccForStrategy(strategy),
    autoPlay: autoPlay,
    options: options,
  );

  // Surveillance pour Android TV
  if (_isAndroidTV) {
    _setupAndroidTVHealthMonitoring();
  }

  return _controller!;
} catch (e) {
  logger.e('Échec VLC avec stratégie $strategy: $e');
  rethrow;
}

}

/// Surveillance proactive de la santé du stream
void _setupAndroidTVHealthMonitoring() {
// Check toutes les 5 secondes (moins agressif)
_healthCheckTimer = Timer.periodic(const Duration(seconds: 5), (timer) {
_checkStreamHealth();
});

// Surveillance des erreurs
_controller?.addListener(() {
  final state = _controller?.value;
  if (state?.hasError == true) {
    logger.w('Erreur VLC détectée: ${state?.errorDescription}');
    _handleStreamError();
  }
});

}

/// Vérification de la santé du stream
void _checkStreamHealth() {
final state = _controller?.value;
if (state == null || !state.isInitialized) return;

// Si le stream est en buffering trop longtemps
if (state.isBuffering) {
  _bufferHealthChecks++;
  logger.d('Stream en buffering... (${_bufferHealthChecks}/5)');
  
  if (_bufferHealthChecks >= 5) {
    logger.w('Stream bloqué en buffering, tentative de récupération');
    _handleStreamError();
  }
} else {
  _bufferHealthChecks = 0; // Reset si ça marche
}

// Reset reconnect attempts if playing well
if (state.isPlaying && !state.isBuffering) {
  _reconnectAttempts = 0;
}

}

/// Gestion intelligente des erreurs
Future _handleStreamError() async {
if (_reconnectAttempts >= _maxReconnectAttempts) {
logger.e('Trop de tentatives de reconnexion, abandon');
return;
}

_reconnectAttempts++;
_bufferHealthChecks = 0;

logger.i('Récupération automatique $_reconnectAttempts/$_maxReconnectAttempts');

try {
  await _hardRestart();
} catch (e) {
  logger.e('Erreur lors de la récupération: $e');
}

}

/// Redémarrage complet (plus sûr)
Future _hardRestart() async {
if (_lastUrl == null) return;

logger.i('Recréation complète du player...');

try {
  await _safeDispose();
  await Future.delayed(const Duration(milliseconds: 1000)); // Plus long pour stabilité
  
  final options = _buildOptionsForStrategy(
    PlayerStrategy.androidTVStable, 
    _lastReferer, 
    _lastOrigin
  );

  _controller = VlcPlayerController.network(
    _lastUrl!,
    hwAcc: HwAcc.auto,
    autoPlay: true,
    options: options,
  );
  
  if (_isAndroidTV) {
    _setupAndroidTVHealthMonitoring();
  }
} catch (e) {
  logger.e('Hard restart échoué: $e');
}

}

/// Hardware acceleration conservateur
HwAcc _getHwAccForStrategy(PlayerStrategy strategy) {
switch (strategy) {
case PlayerStrategy.androidTVStable:
if(performance == 0) { // Eco
logger.d("Eco");
return HwAcc.disabled;
} else if (performance == 1) { // Standard
logger.d("Standard");
return HwAcc.auto;
} else if (performance == 2) { // Optimisé
logger.d("Optimisé");
return HwAcc.full;
}
return HwAcc.disabled; // Auto avec fallback
case PlayerStrategy.iosBalanced:
return HwAcc.full;
}
}

/// Options par stratégie
VlcPlayerOptions _buildOptionsForStrategy(
PlayerStrategy strategy,
String? referer,
String? origin,
) {
switch (strategy) {
case PlayerStrategy.androidTVStable:
return _buildAndroidTVStableOptions(referer, origin);
case PlayerStrategy.iosBalanced:
return _buildIOSFastOptions(referer, origin);
}
}

/// Configuration Android TV stable (options validées)
VlcPlayerOptions _buildAndroidTVStableOptions(String? referer, String? origin) {
final extras = [
'--file-caching=3000',
'--network-caching=3000',
'--live-caching=3000',

'--no-video-title-show',
'--intf=dummy',

'--http-reconnect',
'--http-user-agent=${getUserAgent()}',

// 🔑 Essentiel : forcer un décodage plus “souple”
'--avcodec-skiploopfilter=0',
'--avcodec-skip-frame=0',
'--avcodec-hw=any',

// Permet d’éviter le freeze vidéo
'--drop-late-frames',
'--skip-frames',
'--no-sout-video',

'--adaptive-use-access',
'--adaptive-logic=rate',
// '--verbose=2', // temporairement pour debug

];

if (referer != null && referer.isNotEmpty) {
extras.add('--http-referrer=$referer');
}
if (origin != null && origin.isNotEmpty) {
extras.add('--http-origin=$origin');
}

return VlcPlayerOptions(
advanced: VlcAdvancedOptions([
VlcAdvancedOptions.networkCaching(3000),
]),
video: VlcVideoOptions([
VlcVideoOptions.dropLateFrames(true),
VlcVideoOptions.skipFrames(true),
]),
audio: VlcAudioOptions([
VlcAudioOptions.audioTimeStretch(true),
]),
http: _buildSimpleHttpOptions(referer, origin),
extras: extras,
);
}

/// iOS options inchangées
VlcPlayerOptions _buildIOSFastOptions(String? referer, String? origin) {
final extras = [
'--intf=dummy',
'--no-video-title-show',

  '--network-caching=600',
  '--file-caching=300',
  '--live-caching=600',

  '--codec=videotoolbox,avcodec,any',
  '--adaptive-use-access',
  '--adaptive-logic=predictive',
  '--adaptive-maxwidth=1920',
  '--adaptive-maxheight=1080',

  '--http-reconnect',
  '--http-continuous',
  '--http-user-agent=${getUserAgent()}',
  '--no-metadata-network-access',
];

if (referer != null && referer.isNotEmpty) {
  extras.add('--http-referrer=$referer');
}
if (origin != null && origin.isNotEmpty) {
  extras.add('--http-origin=$origin');
}

return VlcPlayerOptions(
  http: _buildSimpleHttpOptions(referer, origin),
  video: VlcVideoOptions([
    VlcVideoOptions.dropLateFrames(true),
  ]),
  extras: extras,
);

}

/// HTTP options simplifiées
VlcHttpOptions _buildSimpleHttpOptions(String? referer, String? origin) {
final options = [
VlcHttpOptions.httpReconnect(true),
];

if (referer != null && referer.isNotEmpty) {
  options.add(VlcHttpOptions.httpReferrer(referer));
}

if (origin != null && origin.isNotEmpty) {
  options.add('--http-origin=$origin'); // ajout dans http aussi
}


return VlcHttpOptions(options);

}

/// Nettoyage des timers
Future _cleanupTimers() async {
_healthCheckTimer?.cancel();
_reconnectTimer?.cancel();
_healthCheckTimer = null;
_reconnectTimer = null;
}

/// Contrôles de base
Future play() async {
try {
await _controller?.play();
_reconnectAttempts = 0;
logger.d('Lecture démarrée');
} catch (e) {
logger.e("Erreur play: $e");
if (_isAndroidTV) {
await _handleStreamError();
}
}
}

Future pause() async {
try {
await _controller?.pause();
logger.d('Lecture mise en pause');
} catch (e) {
logger.e("Erreur pause: $e");
}
}

Future stop() async {
try {
await _cleanupTimers();
await _controller?.stop();
logger.d('Lecture arrêtée');
} catch (e) {
logger.e("Erreur stop: $e");
}
}

Future dispose() async => _safeDispose();

/// Disposal ultra sécurisé
Future _safeDispose() async {
await _cleanupTimers();

try {
  await _controller?.stopRendererScanning();
  await _controller?.dispose();
  await Future.delayed(const Duration(milliseconds: 300));
    _controller = null;
    logger.d("VLC disposé proprement");
  } catch (e) {
    logger.e("VLC dispose error: $e");
  }

}

// Getters de base
bool get isPlaying => _controller?.value.isPlaying ?? false;
bool get isInitialized => _controller?.value.isInitialized ?? false;
bool get hasError => _controller?.value.hasError ?? false;
bool get isBuffering => _controller?.value.isBuffering ?? false;

// Contrôles essentiels
Future seekTo(Duration position) async {
try {
await _controller?.seekTo(position);
} catch (e) {
logger.e("Erreur seek: $e");
}
}

Future setVolume(int volume) async {
try {
await _controller?.setVolume(volume.clamp(0, 100));
} catch (e) {
logger.e("Erreur volume: $e");
}
}

/// Force une récupération manuelle
Future forceRecover() async {
if (_isAndroidTV) {
logger.i("Récupération manuelle forcée");
await _hardRestart();
}
}

/// Statistiques de santé
Map<String, dynamic> get healthStats => {
'reconnectAttempts': _reconnectAttempts,
'bufferHealthChecks': _bufferHealthChecks,
'isHealthy': _reconnectAttempts == 0 && _bufferHealthChecks < 3,
'hasMonitoring': _healthCheckTimer?.isActive ?? false,
};
}

enum PlayerStrategy {
androidTVStable,
iosBalanced,
}

[rochelryu]

The problem depend of new version flutter stable.

[Zeus178]

The problem depend of new version flutter stable.

Have you found a solution yet? If so, please share it with me.

[alohadance98]

@rochelryu @Zeus178 there is a package fork from vlc_flutter_player which has been fix the error in my comment above

[Zeus178]

@rochelryu @Zeus178 there is a package fork from vlc_flutter_player which has been fix the error in my comment above

i tried flutter_vlc_player_16kb: ^7.4.7 but still same err